PROTO Socket Bit: 3/8 in Drive Size, Hex Tip, 8 mm Tip Size, 6 3/32 in Overall Lg
The PROTO Socket Bit (SKU J4990-8MXL, MPN J4990-8MXL) is a hex bit socket with a 3/8 in drive size and 8 mm hex tip size. It features a fixed insert design and has an overall length of 6 3/32 in. This PROTO-branded…
SKU 3G-OTH-305249
Also listed as: J49908MXL · J4990 8MXL
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The PROTO Socket Bit (SKU J4990-8MXL, MPN J4990-8MXL) is a hex bit socket with a 3/8 in drive size and 8 mm hex tip size. It features a fixed insert design and has an overall length of 6 3/32 in. This PROTO-branded tool is intended for use with compatible drive tools.
Frequently Asked Questions
What is the PROTO J4990-8MXL socket bit used for?
The PROTO J4990-8MXL socket bit is used for driving hex fasteners in industrial assembly, maintenance, and repair applications. Its 3/8 in drive size and 8 mm hex tip make it suitable for use with compatible ratchets or torque wrenches in automotive, manufacturing, and mechanical settings.
What are the specifications of the PROTO J4990-8MXL hex bit socket?
The PROTO J4990-8MXL is a fixed-insert hex bit socket with a 3/8 in drive size and an 8 mm hex tip size. Its overall length is 6 3/32 in. The tool is designed for use with standard 3/8 in drive tools and is manufactured by PROTO.
Where to buy the PROTO J4990-8MXL socket bit worldwide?
3G Electric supplies the PROTO J4990-8MXL socket bit worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this PROTO hex bit socket for your operations.
How to select the correct PROTO socket bit for your application?
To select the correct PROTO socket bit, match the drive size (e.g., 3/8 in) to your ratchet or driver, and ensure the tip size (e.g., 8 mm hex) fits your fastener. The fixed-insert design of the J4990-8MXL provides a secure connection for repetitive use. Verify overall length clearance for your workspace.
Used in
Common applications for PROTOPROTO Products
3G Electric supplies PROTO hex bit sockets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
